package exercises.tests.test1;

import java.util.regex.Pattern;

public class Main {
	public static void main(String[] args) {
		Main main1=new Main();
		String rex="[0-9][0-9]";
		StringBuffer stringBuffer=new StringBuffer(rex);
		Pattern pattern=Pattern.compile(rex);
		System.out.println(stringBuffer);
		System.out.println(main1);
	}
	@Override
	public String toString() {
		return "Hello World!";
	}
}
